HydraPak Mountain Stow Water Bottle - 17 fl. oz.
Fill, drink, pack, repeat. The 17 fl. oz. HydraPak Mountain Stow water bottle is made for easy on-the-go hydration with a flexible yet durable construction that's 80% lighter than most hard bottles.
- Flip top cap with spillproof valve for easy drinking
- Flexible bail handle for comfortable carrying, quick attachment and securing the rolled-up bottle when empty
- Lightweight and packable design; simply flatten and roll the bottle when empty and stow in the bail handle
- Fits where most hard bottles won't—like inside your pocket
- Made of ultradurable, abrasion-resistant TPU with RF-welded seams for superior durability and elasticity
- 100% BPA- and PVC-free
- Wide working temperature range (can be frozen; max temp 140° F/60° C)
- Compatible with 28 mm threaded water filters (filter not included)
- Dimensions: 6.8 x 4 in. (175 x 102 mm)
Imported.
View all HydraPak Water Bottles| Best Use | Hiking Travel |
|---|---|
| Liquid Capacity (L) | 0.5 liters |
| Liquid Capacity (fl. oz.) | 17 fluid ounces |
| Dimensions | 6.8 x 4 inches |
| Water Bottle Material | Plastic |
| Material(s) | TPU/PP/silicone |
| BPA Free | Yes |
| Bottle Opening | Narrow |
| Cap Type | Flip Top |
| Collapsible | Yes |
| Weight | 1.6 ounces |
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Most Helpful Critical Review
Makes water taste weird
I'm not sure how I feel about this bottle. I like how it packs away in small spaces with ease due to it being a malleable bag. It does have some structure as the top and bottom are more stiff than the sides are. You can keep it somewhat level when you're trying to pour into it. I don't like the flavor it imparts to the water. I wasn't expecting that. I have tried freezing with lemon water twice and leaving to thaw then replacing with filtered water. I'm kind of concerned about some sort of leach from whatever this thing is made from. For those concerned, it hasn't leaked and shouldn't leak by design - except for once due to my own user error when I didn't put the top on correctly.
Foul water taste
Size and form is great but water has a very strong rubber / plastic taste. Washed multiple times but it did not eliminate the foul taste.
Flexible water container
Leakproof, flexible, packable, and pretty - but after a few hours it adds a strong plastic/synthetic chemical smell and taste that makes me throw out the water. Will return item.
Great!
I love it! Perfect for snowboarding and fits in my jacket pocket. I’ve taken a couple hard falls n it and it has never burst. The only problem is that sometimes the cap is hard to open, I had an older model that was a twist top, which was much better.
Stowable collapsible hydro flask
I bought this to keep Liquid IV hydro boost in my interior pocket of my ski jacket. It worked out perfectly in the cold and snowy mountains of Utah this March 2025. Very easy to fill and easy to use for a quick drink.
Wet Ski Day
Thought this would be a great bottle for skiing. While leaning over to buckle my boots I compressed the bottle. The lid let loose and flooded my pocket.
good to save space
excels in packing, being soft plastic, which badly affects the taste of drinking water
nice water bottle
very compressible for my ski jacket pocket. i like the valve top.
Outstanding
I've been looking for a water bottle of this quality and convenience for a few years. It conforms to my backpack and is quiet which is important when I'm in the outdoors.
Very packable water bottle
This is a great little water bottle that collapses into a very small container which is great for traveling. I also like that I can easily slip it on my pack or belt loops when hiking and it adds very little weight itself.